Implantable Collamer Lens Use in a Spaceflight Participant During Short Duration Spaceflight

BACKGROUND: the purpose of this report is to document the first use of a single piece, posterior chamber phakic implantable collamer lens (ICL) with a central port in the right eye (oD) of a spaceflight participant (sFp) during a 12-d soyuz mission to the International space station (Iss). We also briefly document the stability of a pre-existing pachychoroid pigment epitheliopathy (ppe) in the macula of his left eye (os) during this mission. CASE REPORT: ocular examination, including refraction, slit lamp examination, macular examination by optical coherence tomography (oCt), and tonometry were performed before and after his mission and he was questioned regarding visual changes during each portion of his flight. DISCUSSION: We documented no change in ICL position during his spaceflight. He reported stable vision during liftoff, entry into microgravity, 12 d on the Iss, descent, and landing. our results suggest that the modern ICL with a central port is stable, effective, and well tolerated during short duration spaceflight. His ppe also remained stable during this mission as documented by oCt.